Trade in

alan211 wrote:

do you have to carry old (heavy and 27inch iMac ) to the store

No, have a look at > Apple Trade In - Apple

For computers, Apple does not take trade-ins directly at the store.

You start the trade-in process online, and they'll send you a box, so you can ship it back to them for evaluation.

Once you accept the trade in value, they'll issue a gift card you can use at an actual store to buy what you want.

You have to bring it in or ship it…

Apple Trade In.

Phil is correct. I just saw the small text on the linked page.

"Please note: computer trade-in is currently only available online."